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arXiv quant-ph/0604087quant-ph
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物质粒子量子波函数的量子经典性质

On the Quantum-Classical Character of the Quantum Wavefunction of Material Particles

Daniela Dragoman

摘要:

我们表明,量子波函数,解释为概率密度找到一个单一的非本地化的量子粒子,根据经典的运动定律的演变,是一个中间的描述的材料量子粒子之间的量子和经典领域。因此,经典力学和量子力学不应该被分开对待,统一描述的维格纳分布函数是可能的。虽然定义在经典相空间坐标上,但维格纳分布函数适应了量子系统的非定域性,并导致量子波函数的薛定谔方程以及位置和动量算子的定义。

英文摘要:

We show that the quantum wavefunction, interpreted as the probability density of finding a single non-localized quantum particle, which evolves according to classical laws of motion, is an intermediate description of a material quantum particle between the quantum and classical realms. Accordingly, classical and quantum mechanics should not be treated separately, a unified description in terms of the Wigner distribution function being possible. Although defined on classical phase space coordinates, the Wigner distribution function accommodates the nonlocalization property of quantum systems, and leads to both the Schrodinger equation for the quantum wavefunction and to the definition of position and momentum operators.

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